I just noticed that my son is blowing through the 1B workbook. At the rate he is going, he will probably finish in about 4 weeks. I would like to go ahead and put something else in his math shelf so that he has something else to do if his level of interest holds. He seems to have such a good flow going.
I looked on the SM website and saw that there are some intensive practice books. I am wondering if I should order those for him or go to 2A straight. I see also there is one "challenging word problems" book for each level as well.
Any of you used the IP books or the CWP books? Do you recommend them? Just wondering how it worked for others who do SM.
Thanks Mamas :)